for Is A Peripheral Capable Of Transmitting Or Receiving Radio Signals From 1mhz To 6ghz. for Is An Open-Source Hardware Platform That Can Be Used As A Usb Peripheral Or Programmed For Stand-Alone Operation, Designed For Testing And Developing Modern And -Generation Radio Technologies.8-Bit Sample Quadrature (8-Bit I And 8-Bit Q); Compatible With for Radio, SDR #, And More; Software Configurable Rx And Tx Gain Filters And Baseband;Software Control Power Supply Antenna Port (50ma At 3.3 V); SMA Female Antenna Connector; Sma Female Clock Input And Output Synchronization;Convenient Programming Button; Pin Header For Internal Expansion; Operating Frequency From 1mhz To 6GHZ; Transceiver Half-Duplex; Up To 20 Million Samples Per Second; High-Speed USB 2.0; USB-Powered; Open Source Hardware;note: Depending on the batch, the appearance, color, and printing of the product , which does not affect use.Description:for One hardware mainly consists of the following parts1. RFFC5072: The mixer provides local oscillator from 80MHz to 4200MHz2. MAX2837: 2.3GHz to 2.7GHz wireless broadband RF transceiver3. MAX5864: ADC/DAC, 22MHZ sampling rate 8bit4. LPC4320/4330: ARM processor clocked at 204MHZ5. Si5351B: I2C programmable arbitrary CMOS clock generator, providing 40MHZ 50MHZ and sampling clock by 800MHz frequency division6. -81563:0.1-6GHz 3V14 dBm amplifier7. SKY13317:20 MHZ-6.0 GHz RF single pole three throw (SP3T) switch8. SKY13350: 0.01-6.0 GHz RF single pole double throw (SPDT) switchTaking the receiving process as an example, the process after the signal enters from the antenna is as follows1. The RF switch determines whether to amplify through a 14dB amplifier2. High-pass or low-pass filter the signal through the image suppression filter3. The signal is mixed by the RFFC5072 chip to a fixed intermediate frequency of 2.6GHz.4. The latest firmware supports the option of variable IF5. Intermediate frequency range 2.150GHz -2.750GHZ6. The signal is sent to the MAX2837 chip and mixed to baseband, and a differential IQ signal is output.size: about 12 x 7.5cmMaterial: PCBcolour: greenPackage Contents: 1 x SDR Development BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.